<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <title>CSS Test: z-index - integer value</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
  <link rel="author" title="James Hopkins" href="http://idreamincode.co.uk/css21testsuite" />
  <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#z-index" />
  <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#numbers" />
  <link rel="help" href="http://www.w3.org/TR/CSS21/syndata.html#parsing-errors" />
  <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />

  <meta content="invalid" name="flags" />
  <meta content="Besides 'auto' and 'inherit' keyword values, z-index property can only accept an integer value. An integer consists of one or more digits '0' to '9'." name="assert" />

  <style type="text/css"><![CDATA[
  div
  {
  height: 100px;
  position: absolute;
  width: 100px;
  }

  #invalid-zindex
  {
  background-color: red;
  z-index: 2.5;
  }

  #valid-zindex
  {
  background-color: green;
  z-index: auto;
  }
  ]]></style>

 </head>

 <body>

  <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>

  <div id="invalid-zindex"></div>

  <div id="valid-zindex"></div>

 </body>
</html>